Besides, the deposition location of Au NPs is also suggested by the comparison of Au NPs photodeposited on the composite photocatalyst under full-spectrum or 550 nm irradiation, which also confirms that our CuInS2/NCN-CNx photocatalysts meet the Z-scheme mechanism. The cooperative effect of the ...
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百度试题 结果1 题目计算C+2C2+3C3+…+CC+Cnx+C2x2+…+Cx,两边对x求导,得C1+2C2x+3C3x2+…+2Cx-=2(1+x2-1,得Cn+2C2+3C+…+nCn=n2计算Cn+22c2+32C2+…+n2C= 相关知识点: 试题来源: 解析 n{n+1)-|||-M-2略 反馈 收藏